// axios二次封装
import axios from 'axios'
import config from './../config'
import { ElMessage } from 'element-plus'
import router from './../router'
import storage from './storage'

const TOKEN_INVALID = 'Token认证失败,请重新登录'
const NETWORK_ERROR = '网络请求异常,请稍后重试'

// 创建axios实例对象,添加全局配置
const service = axios.create({
  baseURL: config.baseApi,
  timeout: 8000
})

// 请求拦截
service.interceptors.request.use((req) => {
  // 如果请求是/users/login,就直接放行
  if (req.url === '/users/login') {
    return req
  }
  // T0-D0
  const headers = req.headers
  const { token } = storage.getItem('userInfo')
  if (!headers.Authorization) headers.Authorization = 'Bearer ' + token
  return req
})

// 响应拦截
service.interceptors.response.use((res) => {
  const { code, data, msg } = res.data
  if (code === 200) {
    return data
  } else if (code === 500001) {
    
    setTimeout(() => {
        router.push('/login')
    },1500)
    return Promise.reject(TOKEN_INVALID)
  } else {
    ElMessage.error(msg || NETWORK_ERROR)
    return Promise.reject(NETWORK_ERROR)
  }
})
/* 
  请求核心函数
  请求配置
 */
function request(options) {
  options.method = options.method || 'get'
  if (options.method.toLowerCase() === 'get') {
      options.params = options.data;
  }
  let isMock = config.mock;
  if (typeof options.mock != 'undefined') {
      isMock = options.mock;
  }
  if (config.env === 'prod') {
      service.defaults.baseURL = config.baseApi
  } else {
      service.defaults.baseURL = isMock ? config.mockApi : config.baseApi
  }

 return service(options)
}

['get', 'post', 'put', 'delete', 'patch'].forEach((item) => {
  request[item] = (url, data, options) => {
    return request({
      url,
      data,
      method: item,
      ...options
    })
  }
})
export default request